Remember!
· You can often use either have to or must, since they are very similar, although you can find the difference sometimes:
have to
We have to go to that concert. We will have fun.
must
We must go to that concert. We will have fun.
It's a personal "obligation" based on my opinion.
· You has an impersonal use when we talk about rules and laws: You have to drive on the left (you means everybody).
Look at these examples:
HAVE TO
MUST
DON´T HAVE TO
MUSTN'T
Typical mistakes:
· Be very careful and never say: I must to go to the bank (I must go to the bank).
· Be careful and never use don't have to instead of mustn't: You don't have to smoke in class. (You mustn't smoke in class.)
In Básico 1 you learnt to use can't for general prohibition, e.g. You can't park here. (=You mustn't park here.), so in this context mustn't and can't are more or less synonymous.
Notice the impersonal use of you when you talk about rules and laws: You have to drive on the left.
You have to wear a seatbelt in a car. (law on roads)
· a rule, a law
· doesn't have to
- no obligation - not necessary
- You don’t have to go to the party it you don’t want to. (no obligation)
- You don’t have to pay for the tickets. They’re free. (not necessary)
· must
- external obligation (1 occasion) - personal obligation or decision
- You must be on time for class tomorrow – you have a test.
- I must buy a new jacket – this one is too old now (my own decision)
· must to
· do / does
· mustn't
prohibition
You mustn’t smoke in class. (= You can't smoke in class.)
· = can't
· mustn't to
· do / does
2. PRONUNCIATION
· Native speakers tend to pronounce have to as /hæf tə/ rather than /hæv tʊ:/
· must can be pronounced:
strongly
/mʌst/
when you want to give emphasis to the idea of obligation
You must come to class on time (= strong stress)
weakly
/məst/
when you want to give extra emphasis to what you are saying
You must give in your homework before Friday (= weak stress)
Be careful:
· the first t is silent in mustn't/'mʌst/
· have in have to is not contracted: You've to arrive to class on time. (You have to arrive to class on time.)
Table of Contents
1. GRAMMAR
· MODAL VERBS: have to, don't have to, must, mustn't
.
Remember!
· You can often use either have to or must, since they are very similar, although you can find the difference sometimes:
· You has an impersonal use when we talk about rules and laws: You have to drive on the left (you means everybody).
Look at these examples:
Typical mistakes:
· Be very careful and never say: I must to go to the bank (I must go to the bank).
· Be careful and never use don't have to instead of mustn't: You don't have to smoke in class. (You mustn't smoke in class.)
In Básico 1 you learnt to use can't for general prohibition, e.g. You can't park here. (=You mustn't park here.), so in this context mustn't and can't are more or less synonymous.
Notice the impersonal use of you when you talk about rules and laws: You have to drive on the left.
Activity:
MODAL VERBS. A quiz
HAVE TO:
· have to / chores
- not necessary
- You don’t have to pay for the tickets. They’re free. (not necessary)
- personal obligation or decision
- I must buy a new jacket – this one is too old now (my own decision)
· do / does
· mustn't to
· do / does
2. PRONUNCIATION
· Native speakers tend to pronounce have to as /hæf tə/ rather than /hæv tʊ:/
· must can be pronounced:
Be careful:
· the first t is silent in mustn't /'mʌst/
· have in have to is not contracted: You've to arrive to class on time. (You have to arrive to class on time.)
3. READING AND LISTENING
Listen to these people speaking in Spanish:
4. VOCABULARY
You learnt some modifiers in: Básico 1: Unit 2B - modifiers (really / very / quite)
This year you will learn:
.